Project title:
Effects of vessel wall mechanics on non-invasive evaluation of cardiovascular intrinsic frequencies

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Grant information:
AHA

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Relevant publications:
Aghilinejad, A., Alavi, R., Rogers, B., Amlani, F. and Pahlevan, N.M., 2021. Effects of vessel wall mechanics on non-invasive evaluation of cardiovascular intrinsic frequencies. Journal of Biomechanics, 129, p.110852.

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Project description:

This dataset is associated with the published study titled "Effects of vessel wall mechanics on non-invasive evaluation of cardiovascular intrinsic frequencies." It contains raw data and simulation 
results that explore how vessel wall elasticity and viscoelasticity influence pressure waveforms and intrinsic frequency parameters. The files "Input pressure waveforms for elastic vessel walls at 
different ω1 levels," "Simulated vessel wall displacement waveforms for elastic wall configurations," "Input pressure and elastic displacement waveforms for high ω1," "Input pressure waveforms 
for viscoelastic vessel walls at low ω1," "Input pressure waveforms for viscoelastic vessel walls at medium ω1," and "Input pressure waveforms for viscoelastic vessel walls at high ω1" include input 
pressure waveforms and the corresponding simulated vessel wall displacement waveforms under both elastic and viscoelastic conditions. These files cover three pressure input cases representing 
low, medium, and high ω1, each simulated for different wall properties. The results are based on single-layer infinite tube models. Additional files, "Spatial distributions of pressure in an elastic 
aneurysmal model" and "Spatial distributions of wall displacement in an elastic aneurysmal model," contain spatial distributions of fluid and solid mechanics in an elastic aneurysm model. These 
include flow velocity amplitudes with streamlines, pressure contours, vessel wall displacement contours at multiple time points during a cardiac cycle, and normalized pressure and displacement 
waveforms measured on the aneurysmal bulge. Similarly, the files "Spatial distributions of pressure in an elastic stenotic model" and "Spatial distributions of wall displacement in an elastic stenotic 
model" provide spatial maps for the elastic stenotic model, including flow velocity, pressure, and wall displacement contours, as well as waveform data at the narrowest region of stenosis across 
four phases of the cardiac cycle (T/4, T/2, 3T/4, and T).

Parameter              Description
---------                 -----------
omega1_bpm        First intrinsic frequency (beats per minute)
omega2_bpm        Second intrinsic frequency (beats per minute)

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Software: 
Matlab, Excel
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